Dust bin



FIG. 1 is a top, left front perspective view of a dust bin in accordance with our design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown are included for the purpose of illustrating environment and form no part of the claimed design. 

CLAIM We claim the ornamental design for a dust bin, as shown and described. 